package com.qf.day01;

public class Main {
    public static void main(String[] args) {
        // Press Alt+Enter with your caret at the highlighted text to see how
        // IntelliJ IDEA suggests fixing it.
        System.out.println("Hello and welcome!");


            System.out.println("*");
            System.out.println("**");
            System.out.println("***");
            System.out.println("****");

    }
}
/*
    操你妈
 */